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Integrated GPS front-ends cuts need for external parts

Posted: 07 Apr 2010     Print Version  Bookmark and Share

Keywords:GPS  front-end  LNA  FBAR filter 

ALM-2712 front-end modules

Avago Technologies debuts the ALM-2712 front-end module that packs LNA, pre- and post high-rejection FBAR filters and other RF matching components that cuts the need for external RF matching components. As a result, it helps customers to simplify the design process, and reduce board space and component count in their applications.

The pre- and post-high rejection FBAR filters provide low insertion loss in GPS band frequencies. The device also includes optimum out of band rejection at cellular, DCS/PCS and WLAN band frequencies, making it well-suited for use in simultaneous GPS, voice and data operations in mobile handsets.

Moreover, the ALM-2712 has a built-in shunt inductor at the RF input pin to enhance ESD protection, which allows the device to survive more than 3kV of Human Body Model ESD charge at the RF input pin.

Avago's ALM-2712 GPS module is housed in a miniature 3mm x 2.5mm x 1mm MCOB package and is intended for use in space constrained applications. At a typical operating condition of 2.7V and 7.5mA, this GPS front-end module effectively leverages Avago's 0.25µm GaAs enhancement-mode pHEMT process and its proprietary FBAR filtering technologies, to deliver a 1.26dB noise figure, 14.2dB gain, and +5dBm input third order intercept point (IIP3) and 89dBc/80dBc/72dBc of out of band rejection at cellular, DCS/PCS and WLAN band frequencies.

Pricing for the ALM-2712 is Rs.66.49 ($1.44) each in 10,000-piece quantities. Samples and production quantities are available through Avago's direct sales channel and worldwide distribution partners.

- Ismini Scouras

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